Don't be tempted to overload your pizza. It may seem like a good idea to put everything on that you like, but this really is a case of 'less is more!'.
Dont overlap ingredients as you want the heat getting to everything evenly, if you over-do the toppings and overlay things it will be soggy and too heavy. A few of your favourite things placed carefully on top will lead to a better tasting, healthier Pizza.